STK3311-X Datasheet | Sensortek

STK3311-X Ambient Light Sensor and Proximity Sensor with Built-in IR LED Datasheet Version - 1.1 STK3311-X REV 1.1 1. OVERVIEW Description The STK3311-X is an integrated ambient and infrared light to digital converter with a built-in IR LED and I2C interface. This device provides not only ambient light sensing to allow robust backlight/display brightness control but also infrared sensing to allow proximity estimation featured with interrupt function. For ambient light sensing, the STK3311-X incorporates a photodiode, timing controller and ADC in a single chip. The excellent spectral response is designed to be closeto human eye. The STK3311-X is suitable for detecting a wide range of light intensity environment. For proximity sensing, the STK3311-X also incorporates a photodiode, timing controller and ADC in the same chip. The spectral response of STK3311-X is optimized for wavelength 940nm infrared light. The STK3311-X provides programmable duty setting to drive IR LED and employs a noise cancellation scheme to highly reject unwanted ambient IR noise. The proximity sensor is optimized so that the black card at 0-cm can be detected. Please contact with sensortek for further application solution. The STK3311-X has excellent temperature pensation, robust on-chip refresh rate setting without external ponents. Software shutdown mode control is provided for power saving application. The STK3311-X operating voltage range is 2.4V to 3.6V. Feature - Integrated ambient light sensor, proximity sensor and infrared LED in one package. - 940nm LED for STK3311-X. Ambient Light Sensor - Convert ambient light intensity to 16-bit digital data format - 3rd generation ambient light sensor which closes to human-eye response and suppress IR portion - Read the Illuminance...